from tkinter import*
print('ввеите начальную координату X: ')
X=int(input())
print('ввеите начальную координату Y: ')
Y=int(input())
print('ввеите начальную координату N: ')
N=int(input())
coords = [0,0,10,0,10,10,20,10,20,0,30,0,30,20,0,20]
if N == 0 and X>=0 and X<=500 and Y>=0  and Y<=500:
    pass
else :
    if N > 0 and 0*N+X>=0 and 0*N+Y>=0 and 30*N+X<=500 and 20*N+Y<=500:
        pass
    else:
        if N < 0 and 30*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500:
            pass
        else:
            print ('размер фигуры превышает максимальный размер поля ')
        exit()
root = Tk()
root.title("ит марафон")
root.geometry("500x500")
canvas = Canvas (bg="white",  width=500, height=500)
canvas.pack (anchor=CENTER,  expand=1)
canvas.create_polygon(coords [0] *N+X, coords [1] *N+Y,
                                      coords [2] *N+X, coords [3] *N+Y,
                                      coords [4] *N+X, coords [5] *N+Y,
                                      coords [6] *N+X, coords [7] *N+Y,
                                      coords [8] *N+X, coords [9] *N+Y,
                                      coords [10]*N+X, coords [11] *N+Y,
                                      coords [12]*N+X, coords [13] *N+Y,
                                      coords [14]*N+X, coords [15] *N+Y)
root.mainloop()
